A.1000mm²
B.1206mm²
C.1404mm²
D.1608mm²
A.1000mm²
B.1206mm²
C.1404mm²
D.1608mm²
A.0.1%
B.0.2%
C.0.3%
D.0.4%
A.0.15%
B.0.20%
C.0.25%
D.0.30%
A.3108mm²
B.3228mm²
C.3002mm²
D.3043mm²
A.16mm
B.20mm
C.25mm
D.32mm
E.40mm
A.8840623mm³
B.15120000mm³
C.16965181mm³
D.23960623mm³
A.0.1%
B.0.3%
C.0.5%
D.1%
A.50mm
B.60mm
C.70mm
D.80mm
A.增加混凝土强度
B.提高结构稳定性
C.平衡受拉区的拉力
D.减少结构自重